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Finding the Fourth Proportional to 12,392.36, 18,592.18 and 4,993.01

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Solution

The fourth proportional to 12,392.36, 18,592.18 and 4,993.01 is: 7,490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.36 : 18,592.18 = 4,993.01 : x
  2. Step 2: Convert to fraction form
    12,392.36/18,592.18 = 4,993.01/x
  3. Step 3: Cross multiply
    12,392.36x = 18,592.18 × 4,993.01
  4. Step 4: Simplify right side
    12,392.36x = 92,830,940.66
  5. Step 5: Solve for x
    x = 92,830,940.66/12,392.36
  6. Step 6: Final answer
    x = 7,490.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.